It should at least be somewhere in Europe if the sale is for a French expo. Not sure where you are, though.

Of course, you could always just make an American account, buy iTunes codes digitally so they get emailed to you (I dunno, Amazon or some other site should do this), and then download them if you really wanted. You can have apps from multiple accounts on an iOS device. I have some JP store apps like THE iDOLM@STER MOBiLE i on mine.